Would you advise them to leave and risk not being able to put food on the table if they can't find another position? If there's little to no opportunity for lateral movement in their job market right now?
I would advise them to do what they felt was in their net best interest. Either way, they are making a conscious choice - a choice to stay and continue subjecting themselves to such treatment or a choice to leave and assume the risk.
Again, would you advise them to stay and subject themselves to they type of treatment they did not agree with?
By this time I can't tell if you're deliberately misunderstanding reality to virtue signal some sort of privilege?
But I will give you the benefit of the doubt. Vulnerable populations can have their employment opportunities gamed by powerful groups where they are essentially enslaved by their reliance on their paycheck to support their family, food, housing, etc. I don't understand why this doesn't register with you.
Again, would you advise them to stay and subject themselves to they type of treatment they did not agree with?